Justin it



(No Model.)

J. vH. HILL.

EXTRAGTOR FOB. TUBEk WELLS.

Patented Oct. 8, 1889.

12d/meow N. PETERS. Phoumugmpher. Wmhngian. D. C.

UNITED STATES 'PATENT OFFICE..

JUSTIN H. HILL, or CHICAGO, ILLINOIS.v

EXTRACTOR FOR TU BE-WELLS.

' SPECIFICATION forming part of Letters Patent No. 412,707, datedOctober 8, 1889.

Application filed April 19, 1889. Serial No. 307,816. (No model.)

To aZZ whom it may concern,.-

Be it known that I, JUSTIN H. HILL, avciti-- zen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Extractors forTube-Wells, of which the following is a specification, reference beinghad therein to theaccompanying drawings, in which- Figure 1 represents atransverse vertical sectional view of thelower end of a tubewell,showing-my improved extractor in the actof withdrawing a packing-ringtherein; Fig. 2, a similar view of the extractor in detail; Fig. 3, atransverse sectional view on the line :c `of Fig. 2, looking downward;Fig. 4;, a detail perspective view of one of the spring-catches.

The invention has for its object the production of a simple andeffectual device for withdrawing or extracting the rubber rings locateda't the bottom of tube-wells whenever the rings become worn or uselessfrom long usage, and it is therefore desired to replace them with newones; and it consists in certain novel features ofwonstruction andarrangements of parts, t at will be fully hereinafter set forth, andparticularly7 pointed out in the claims appended.

The invention is extremely simple, and will be fully understood andappreciatedfrom the drawings, when taken in connection with thefollowing description. Y

The letter A designates the cylinder, and B the pointed strainerrof thewell, both of which parts are of the usual construction. Within thecylinder or tube A, and resting l on thetop of the strainer, is therubber packing-ring C, which is' of the usual construction, with theexception that it is beveled at its upper inner edge, as shown at a inFig. l, to facilitate the action of the spring extractors or catches.

D designates the tubular extracting-rod, which is provided at its lowerend with external screw-threads. Screwed on the lower end of thistubular rod is a vertically-adjustable stop collar or `sleeve E, thelower end of which strikes and rests upon the upper end of the rubberring C when the extractor-rod is forced down in the well, that portionof the rod below the adjustable collar projecting through and below thering, as shown. By adjusting this stop-sleeve up or down rings ofdifferent lengths may be accommodated, as is evident.

The spring-catches F consist each of a leafspring portion b and abeveled nose or head b', and they are inserted in the tubular rod, theirbeveled noses downward. There are preferably three of these catchessecured in the tube at equal distances apart. preferably held securelyin the tube b'y means of a triangular block G, secured in the tube ashort distance from its lower end by means of a screw c, which latter ispassed through the tube and tapped into the block, as shown, the upperends of the spring portions b being secured to the respective faces o'fthe triangular block. The beveled noses of the catches project normallyout through slots in the lower end of the tubular rod, so that when thedevice is forced down in the well they will automatically catch underthe lower end of the ring, the bevel a on the rubber ring and the bevelon the noses serving to facilitate in pressing the catches inwardly topass the ring, as is obvious. When the device is thus inserted, the ringmay be withdrawn by simply withdrawing the rod. The three catches, beingequal distances apart, serve to hold the ring straight and preventbinding in the withdrawing operation.

Of course more than three spring-catches may be employed, if, it is sodesired.

Having thus fully described my invention, what I claim, and desire tosecure by Letters 1. An extracting-tool consisting of a tubular rodscrew-threaded externally at its lower end, a vertically-adjust; blecollar tapped on this rod, and three or' more spring-catches inserted inthe s'aid tubular rod and provided with beveled projecting noses,substantially as described.

2. The combination of a tubular rod D,

provided with vertical slots at its loWer end, a vertically-adjustablecollar tapped upon the lower end of this rod, a removable block G,secured in the tube D, and the spriug- JUSTIN Il. HILL. catches F,secured to the block G and provided with beveled noses which proj eetout through the notches in the lower end of the said tube D,substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

Vtnesses:

RICE H. BELL, WILLIAM HAGER.

